A network for historic guitars and vihuelas
Just as an update, I can strongly recommend the wonderful two Bach collections by Thomas Schmitt published by GatoMurr. And, yes, Javier Hinojosa's transcription of 1006a is a monster, but it's one of the most clever and imaginative transcription I know of. Well worth the try (the Prelude should keep you busy for months if not years, but the Gavotte en rondeau is quite straightforward).
That said, the other way is to make your own transcriptions. the cello suites lend themselves very well to transcriptions for various instruments, and sound pretty good on a baroque guitar. The campanella scales must be used with taste and elegance ; too much overtones can kill the beauty of this music but may be very effective in some places.